{"id":272976,"date":"2024-10-19T18:19:34","date_gmt":"2024-10-19T18:19:34","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-iso-98062013\/"},"modified":"2024-10-25T14:40:12","modified_gmt":"2024-10-25T14:40:12","slug":"bs-en-iso-98062013","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-iso-98062013\/","title":{"rendered":"BS EN ISO 9806:2013"},"content":{"rendered":"
PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
---|---|---|---|---|---|---|---|
4<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
8<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
9<\/td>\n | Introduction <\/td>\n<\/tr>\n | ||||||
11<\/td>\n | Section sec_1 Section sec_2 Section sec_3 1\tScope 2\tNormative references 3\tTerms and definitions <\/td>\n<\/tr>\n | ||||||
12<\/td>\n | Section sec_3.1 Section sec_3.2 Section sec_3.3 Section sec_3.4 Section sec_3.5 Section sec_3.6 Section sec_3.7 Section sec_3.8 Section sec_3.9 Section sec_3.10 Section sec_3.11 <\/td>\n<\/tr>\n | ||||||
13<\/td>\n | Section sec_3.12 Section sec_3.13 Section sec_3.14 Section sec_3.15 Section sec_4 4\tSymbols and abbreviated terms <\/td>\n<\/tr>\n | ||||||
18<\/td>\n | Section sec_5 Section sec_5.1 5\tGeneral 5.1\tTest overview – Sequence of the tests <\/td>\n<\/tr>\n | ||||||
19<\/td>\n | Table tab_1 Section sec_5.2 5.2\tParticular aspects of collectors using external power sources and active or passive measures for normal operation and self-protection <\/td>\n<\/tr>\n | ||||||
20<\/td>\n | Section sec_6 Section sec_6.1 Section sec_6.1.1 Section sec_6.1.2 Section sec_6.1.3 Section sec_6.2 Section sec_6.2.1 Section sec_6.3 Section sec_6.3.1 6\tInternal pressure tests for fluid channels 6.1\tInorganic fluid channels 6.2\tFluid channels made of organic materials (plastics or elastomers) 6.3\tApparatus and procedure <\/td>\n<\/tr>\n | ||||||
21<\/td>\n | Section sec_6.3.2 Section sec_6.3.3 Section sec_6.3.4 Section sec_6.4 Section sec_7 Section sec_7.1 Section sec_7.2 6.4\tResults 7\tLeakage test (closed loop air heating collectors only) 7.1\tObjective 7.2\tApparatus and procedure <\/td>\n<\/tr>\n | ||||||
22<\/td>\n | Table tab_b Figure fig_1 Section sec_7.3 Section sec_7.4 Section sec_8 Section sec_8.1 7.3\tTest conditions 7.4\tResults 8\tRupture or collapse test (air heating collectors only) 8.1\tObjective <\/td>\n<\/tr>\n | ||||||
23<\/td>\n | Section sec_8.2 Section sec_8.2.1 Section sec_8.2.2 Section sec_8.2.3 8.2\tApparatus and Procedure <\/td>\n<\/tr>\n | ||||||
24<\/td>\n | Section sec_8.3 Section sec_8.3.1 Section sec_8.4 Section sec_9 Section sec_9.1 Section sec_9.2 8.3\tTest conditions 8.4\tResults and reporting 9\tHigh-temperature resistance test 9.1\tObjective 9.2\tApparatus and procedure <\/td>\n<\/tr>\n | ||||||
25<\/td>\n | Section sec_9.3 Table tab_2 Section sec_9.4 9.3\tTest conditions 9.4\tResults <\/td>\n<\/tr>\n | ||||||
26<\/td>\n | Section sec_10 Section sec_10.1 Table tab_3 Section sec_10.2 10\tStandard stagnation temperature of liquid heating collectors 10.1\tGeneral 10.2\tMeasurement and extrapolation of standard stagnation temperature <\/td>\n<\/tr>\n | ||||||
27<\/td>\n | Section sec_10.3 Section sec_10.4 10.3\tDetermining standard stagnation temperature using efficiency parameters 10.4\tResults <\/td>\n<\/tr>\n | ||||||
28<\/td>\n | Section sec_11 Section sec_11.1 Section sec_11.2 Section sec_11.3 11\tExposure and pre-exposure test 11.1\tObjective 11.2\tApparatus and procedure 11.3\tTest conditions <\/td>\n<\/tr>\n | ||||||
29<\/td>\n | Table tab_4 Section sec_11.3.1 Section sec_11.4 Section sec_12 Section sec_12.1 Section sec_12.2 11.4\tResults 12\tExternal thermal shock test 12.1\tObjective 12.2\tApparatus and procedure <\/td>\n<\/tr>\n | ||||||
30<\/td>\n | Section sec_12.3 Section sec_12.4 Section sec_13 Section sec_13.1 Section sec_13.2 12.3\tTest conditions 12.4\tResults 13\tInternal thermal shock test 13.1\tObjective 13.2\tApparatus and procedure <\/td>\n<\/tr>\n | ||||||
31<\/td>\n | Section sec_13.3 Section sec_13.4 Section sec_14 Section sec_14.1 Section sec_14.2 13.3\tTest conditions 13.4\tResults 14\tRain penetration test 14.1\tObjective 14.2\tApparatus and procedure <\/td>\n<\/tr>\n | ||||||
32<\/td>\n | Section sec_14.3 14.3\tTest conditions <\/td>\n<\/tr>\n | ||||||
33<\/td>\n | Table tab_c Figure fig_2 Figure fig_3 <\/td>\n<\/tr>\n | ||||||
34<\/td>\n | Figure fig_4 Section sec_14.4 Section sec_15 Section sec_15.1 Section sec_15.2 Section sec_15.2.1 Section sec_15.2.2 Section sec_15.2.3 14.4\tResults 15\tFreeze resistance test 15.1\tObjective 15.2\tApparatus and procedure <\/td>\n<\/tr>\n | ||||||
35<\/td>\n | Section sec_15.3 Section sec_15.4 Section sec_16 Section sec_16.1 Section sec_16.2 Section sec_16.2.1 15.3\tTest conditions 15.4\tResults 16\tMechanical load test with positive or negative pressure 16.1\tObjectives 16.2\tApparatus and procedure <\/td>\n<\/tr>\n | ||||||
36<\/td>\n | Section sec_16.2.2 Section sec_16.2.3 Section sec_16.3 Section sec_16.4 Section sec_17 Section sec_17.1 16.3\tTest conditions 16.4\tResults 17\tImpact resistance test 17.1\tObjective <\/td>\n<\/tr>\n | ||||||
37<\/td>\n | Section sec_17.2 Section sec_17.3 Section sec_17.4 Section sec_17.4.1 17.2\tTest procedure 17.3\tImpact location 17.4\tMethod 1: Impact resistance test using ice balls <\/td>\n<\/tr>\n | ||||||
38<\/td>\n | Section sec_17.4.2 Table tab_5 Section sec_17.4.3 Section sec_17.5 Section sec_17.6 17.5\tMethod 2: Impact resistance test using steel balls 17.6\tResults <\/td>\n<\/tr>\n | ||||||
39<\/td>\n | Section sec_18 Section sec_19 Section sec_20 Section sec_20.1 18\tFinal inspection (related to Clauses 5 to 17) 19\tTest report (related to Clauses 5 to 18) 20\tPerformance testing of fluid heating collectors 20.1\tGeneral <\/td>\n<\/tr>\n | ||||||
40<\/td>\n | Section sec_20.2 Section sec_20.2.1 Section sec_20.2.2 20.2\tSteady-state efficiency test using a solar irradiance simulator <\/td>\n<\/tr>\n | ||||||
41<\/td>\n | Section sec_20.2.3 Section sec_21 Section sec_21.1 Section sec_21.2 Section sec_21.2.1 Section sec_21.2.2 Section sec_21.2.2.1 Section sec_21.2.2.2 21\tCollector mounting and location 21.1\tGeneral 21.2\tCollector frame <\/td>\n<\/tr>\n | ||||||
42<\/td>\n | Section sec_21.3 Section sec_21.4 Section sec_21.5 21.3\tTilt angle 21.4\tCollector orientation outdoors 21.5\tShading from direct solar irradiance <\/td>\n<\/tr>\n | ||||||
43<\/td>\n | Section sec_21.6 Section sec_21.7 Section sec_21.8 Section sec_21.8.1 Section sec_21.8.2 Section sec_21.8.3 21.6\tDiffuse and reflected solar irradiance 21.7\tThermal irradiance 21.8\tSurrounding air speed <\/td>\n<\/tr>\n | ||||||
44<\/td>\n | Section sec_22 Section sec_22.1 Section sec_22.1.1 Section sec_22.1.1.1 Section sec_22.1.1.2 Section sec_22.1.1.3 Section sec_22.1.1.4 22\tInstrumentation 22.1\tSolar radiation measurement <\/td>\n<\/tr>\n | ||||||
45<\/td>\n | Section sec_22.1.1.5 Section sec_22.1.1.6 Section sec_22.1.1.7 Section sec_22.2 Section sec_22.2.1 22.2\tThermal radiation measurement <\/td>\n<\/tr>\n | ||||||
46<\/td>\n | Section sec_22.2.2 Section sec_22.2.3 Section sec_22.2.4 Section sec_22.2.4.1 <\/td>\n<\/tr>\n | ||||||
47<\/td>\n | Section sec_22.2.4.2 Section sec_22.3 Section sec_22.3.1 Section sec_22.3.2 Section sec_22.3.2.1 Section sec_22.3.2.2 22.3\tTemperature measurements <\/td>\n<\/tr>\n | ||||||
48<\/td>\n | Section sec_22.3.2.3 Section sec_22.3.3 Section sec_22.3.3.1 Section sec_22.3.3.2 Section sec_22.3.3.3 <\/td>\n<\/tr>\n | ||||||
49<\/td>\n | Section sec_22.3.3.4 Section sec_22.3.4 Section sec_22.3.4.1 Section sec_22.3.4.2 Section sec_22.4 Section sec_22.4.1 Section sec_22.4.2 Table tab_6 22.4\tFlow rate measurement <\/td>\n<\/tr>\n | ||||||
50<\/td>\n | Section sec_22.5 Section sec_22.5.1 Section sec_22.5.2 Section sec_22.5.2.1 Section sec_22.5.2.1.1 22.5\tSurrounding air speed measurement <\/td>\n<\/tr>\n | ||||||
51<\/td>\n | Section sec_22.5.2.1.2 Section sec_22.6 Section sec_22.7 22.6\tElapsed time measurement 22.7\tPressure measurement <\/td>\n<\/tr>\n | ||||||
52<\/td>\n | Section sec_22.8 Section sec_22.9 Section sec_22.10 Section sec_23 Section sec_23.1 Section sec_23.1.1 22.8\tHumidity measurement 22.9\tCollector gross area 22.10\tCollector fluid capacity 23\tTest installation 23.1\tLiquid heating collectors <\/td>\n<\/tr>\n | ||||||
53<\/td>\n | Table tab_d Figure fig_5 <\/td>\n<\/tr>\n | ||||||
54<\/td>\n | Table tab_e Figure fig_6 Section sec_23.1.2 <\/td>\n<\/tr>\n | ||||||
55<\/td>\n | Section sec_23.1.3 Section sec_23.1.4 Section sec_23.1.5 <\/td>\n<\/tr>\n | ||||||
56<\/td>\n | Section sec_23.2 Section sec_23.2.1 Section sec_23.2.2 Table tab_f Figure fig_7 23.2\tAir heating collectors <\/td>\n<\/tr>\n | ||||||
57<\/td>\n | Section sec_23.2.3 Table tab_g Figure fig_8 Section sec_23.2.4 Section sec_23.2.5 <\/td>\n<\/tr>\n | ||||||
58<\/td>\n | Section sec_23.2.6 Section sec_23.2.7 Section sec_23.2.8 Section sec_24 Section sec_24.1 24\tPerformance test procedures 24.1\tGeneral <\/td>\n<\/tr>\n | ||||||
59<\/td>\n | Section sec_24.2 Section sec_24.3 Section sec_24.4 Section sec_24.4.1 Section sec_24.4.2 Section sec_24.4.2.1 Section sec_24.4.2.2 24.2\tTest installation 24.3\tPreconditioning of the collector 24.4\tTest conditions <\/td>\n<\/tr>\n | ||||||
60<\/td>\n | Section sec_24.4.2.3 Section sec_24.4.2.4 <\/td>\n<\/tr>\n | ||||||
61<\/td>\n | Section sec_24.4.3 Section sec_24.5 Section sec_24.5.1 Section sec_24.5.2 Section sec_24.5.3 Section sec_24.5.4 24.5\tTest procedure <\/td>\n<\/tr>\n | ||||||
62<\/td>\n | Table tab_7 Section sec_24.5.5 Section sec_24.6 Section sec_24.6.1 24.6\tMeasurements <\/td>\n<\/tr>\n | ||||||
63<\/td>\n | Table tab_8 Section sec_24.6.2 Section sec_24.6.2.1 <\/td>\n<\/tr>\n | ||||||
64<\/td>\n | Section sec_24.6.2.2 Section sec_24.6.2.3 Section sec_24.6.3 Section sec_24.7 Section sec_24.7.1 Section sec_24.7.1.1 24.7\tTest period <\/td>\n<\/tr>\n | ||||||
65<\/td>\n | Table tab_9 Section sec_24.7.2 Section sec_24.7.2.1 Section sec_24.7.2.2 <\/td>\n<\/tr>\n | ||||||
66<\/td>\n | Section sec_24.7.2.3 Section sec_24.7.2.4 <\/td>\n<\/tr>\n | ||||||
67<\/td>\n | Figure fig_9 Figure fig_10 <\/td>\n<\/tr>\n | ||||||
68<\/td>\n | Figure fig_11 Figure fig_12 <\/td>\n<\/tr>\n | ||||||
69<\/td>\n | Section sec_24.8 Section sec_24.8.1 Section sec_24.8.2 Section sec_24.8.3 Section sec_25 Section sec_25.1 Section sec_25.1.1 24.8\tPresentation of results 25\tComputation of the collector parameters 25.1\tLiquid heating collectors <\/td>\n<\/tr>\n | ||||||
70<\/td>\n | Section sec_25.1.2 Section sec_25.1.2.1 Section sec_25.1.2.2 <\/td>\n<\/tr>\n | ||||||
71<\/td>\n | Section sec_25.1.3 Section sec_25.1.3.1 Section sec_25.1.3.2 Section sec_25.1.4 Section sec_25.1.4.1 <\/td>\n<\/tr>\n | ||||||
72<\/td>\n | Section sec_25.1.4.2 Section sec_25.1.4.3 Section sec_25.1.4.4 <\/td>\n<\/tr>\n | ||||||
73<\/td>\n | Section sec_25.2 Section sec_25.2.1 Section sec_25.2.2 25.2\tSteady-state air heating collectors <\/td>\n<\/tr>\n | ||||||
74<\/td>\n | Section sec_26 Section sec_26.1 Section sec_26.1.1 Section sec_26.1.2 Section sec_26.1.2.1 Section sec_26.1.2.2 Section sec_26.1.2.3 26\tDetermination of the effective thermal capacity and the time constant of a collector 26.1\tMeasurement of the effective thermal capacity (separate measurement) <\/td>\n<\/tr>\n | ||||||
75<\/td>\n | Section sec_26.1.2.4 Section sec_26.1.3 <\/td>\n<\/tr>\n | ||||||
76<\/td>\n | Section sec_26.2 Section sec_26.3 Section sec_26.3.1 26.2\tMeasurement of the effective thermal capacity (quasi dynamic method) 26.3\tCalculation method <\/td>\n<\/tr>\n | ||||||
77<\/td>\n | Section sec_26.3.2 Table tab_10 Section sec_26.3.3 Section sec_26.4 Section sec_26.4.1 26.4\tDetermination of collector time constant (optional) <\/td>\n<\/tr>\n | ||||||
78<\/td>\n | Section sec_26.4.2 Table tab_h Figure fig_13 <\/td>\n<\/tr>\n | ||||||
79<\/td>\n | Section sec_27 Section sec_27.1 Section sec_27.1.1 Section sec_27.1.2 27\tDetermination of incident angle modifier 27.1\tModelling <\/td>\n<\/tr>\n | ||||||
80<\/td>\n | Table tab_i Figure fig_14 Section sec_27.1.3 <\/td>\n<\/tr>\n | ||||||
81<\/td>\n | Table tab_j Figure fig_15 Section sec_27.1.4 <\/td>\n<\/tr>\n | ||||||
82<\/td>\n | Table tab_k Figure fig_16 <\/td>\n<\/tr>\n | ||||||
83<\/td>\n | Section sec_27.2 Section sec_27.2.1 Section sec_27.2.1.1 Section sec_27.2.1.2 Section sec_27.2.1.3 Section sec_27.2.2 Section sec_27.2.3 27.2\tTest procedures <\/td>\n<\/tr>\n | ||||||
84<\/td>\n | Section sec_27.3 Section sec_27.3.1 Section sec_27.3.2 Section sec_27.3.3 27.3\tCalculation of collector incidence angle modifier <\/td>\n<\/tr>\n | ||||||
85<\/td>\n | Section sec_28 Section sec_28.1 Section sec_28.2 Section sec_28.3 Section sec_28.4 28\tDetermination of the pressure drop across a collector (Liquid) (optional) 28.1\tGeneral 28.2\tTest installation 28.3\tPreconditioning of the collector 28.4\tTest procedure <\/td>\n<\/tr>\n | ||||||
86<\/td>\n | Section sec_28.5 Section sec_28.6 Section sec_28.7 28.5\tMeasurements 28.6\tPressure drop caused by fittings 28.7\tTest conditions <\/td>\n<\/tr>\n | ||||||
87<\/td>\n | Section sec_28.8 Section sec_28.9 Section sec_28.9.1 Table tab_l Figure fig_17 Section sec_28.9.2 28.8\tCalculation and presentation of results 28.9\tPressure drop for air collectors <\/td>\n<\/tr>\n | ||||||
88<\/td>\n | Section sec_28.9.3 Section sec_28.9.4 Table tab_m Figure fig_18 <\/td>\n<\/tr>\n | ||||||
89<\/td>\n | Annex sec_A Annex sec_A.1 Annex\u00a0A \n(normative)<\/p>\n Test reports <\/td>\n<\/tr>\n | ||||||
91<\/td>\n | Annex sec_A.2 <\/td>\n<\/tr>\n | ||||||
92<\/td>\n | Table tab_A.1 Annex sec_A.3 Annex sec_A.3.1 Annex sec_A.3.2 Annex sec_A.3.3 Annex sec_A.4 Annex sec_A.4.1 <\/td>\n<\/tr>\n | ||||||
93<\/td>\n | Annex sec_A.4.2 Annex sec_A.4.3 Table tab_q Figure fig_A.1 Table tab_A.2 Annex sec_A.5 Annex sec_A.5.1 <\/td>\n<\/tr>\n | ||||||
94<\/td>\n | Annex sec_A.5.2 Annex sec_A.5.3 Annex sec_A.6 Annex sec_A.6.1 Annex sec_A.6.2 Annex sec_A.6.3 Annex sec_A.6.3.1 Annex sec_A.6.3.2 <\/td>\n<\/tr>\n | ||||||
95<\/td>\n | Annex sec_A.6.3.2.1 Annex sec_A.6.4 Annex sec_A.6.5 Annex sec_A.7 Annex sec_A.7.1 Annex sec_A.7.2 Table tab_A.3 Annex sec_A.7.3 <\/td>\n<\/tr>\n | ||||||
96<\/td>\n | Table tab_A.4 Annex sec_A.7.4 Annex sec_A.8 Annex sec_A.8.1 Annex sec_A.8.1.1 Annex sec_A.8.1.2 <\/td>\n<\/tr>\n | ||||||
97<\/td>\n | Annex sec_A.8.1.3 Annex sec_A.8.2 Annex sec_A.9 Annex sec_A.9.1 Annex sec_A.9.1.1 Annex sec_A.9.1.2 Annex sec_A.9.1.3 <\/td>\n<\/tr>\n | ||||||
98<\/td>\n | Annex sec_A.9.2 Annex sec_A.10 Annex sec_A.10.1 Annex sec_A.10.1.1 Annex sec_A.10.1.2 Annex sec_A.10.2 Annex sec_A.11 Annex sec_A.11.1 Annex sec_A.11.1.1 Annex sec_A.11.1.2 Annex sec_A.11.1.3 <\/td>\n<\/tr>\n | ||||||
99<\/td>\n | Table tab_A.5 Annex sec_A.11.1.4 Annex sec_A.11.1.5 Annex sec_A.11.2 Annex sec_A.12 Annex sec_A.12.1 Annex sec_A.12.1.1 Annex sec_A.12.1.2 Annex sec_A.12.1.3 <\/td>\n<\/tr>\n | ||||||
100<\/td>\n | Annex sec_A.12.2 Annex sec_A.12.2.1 Annex sec_A.12.2.2 Annex sec_A.12.2.3 Annex sec_A.13 Annex sec_A.13.1 Annex sec_A.13.2 <\/td>\n<\/tr>\n | ||||||
101<\/td>\n | Annex sec_A.14 Annex sec_A.14.1 Annex sec_A.14.2 Annex sec_A.15 <\/td>\n<\/tr>\n | ||||||
102<\/td>\n | Annex sec_A.16 Annex sec_A.16.1 Annex sec_A.16.2 Annex sec_A.16.3 Table tab_A.6 <\/td>\n<\/tr>\n | ||||||
103<\/td>\n | Table tab_ab Figure fig_A.2 Table tab_A.7 <\/td>\n<\/tr>\n | ||||||
104<\/td>\n | Annex sec_A.16.4 Table tab_A.8 <\/td>\n<\/tr>\n | ||||||
105<\/td>\n | Table tab_ac Figure fig_A.3 Table tab_A.9 <\/td>\n<\/tr>\n | ||||||
106<\/td>\n | Annex sec_A.16.5 Table tab_A.10 <\/td>\n<\/tr>\n | ||||||
107<\/td>\n | Table tab_ad Figure fig_A.4 <\/td>\n<\/tr>\n | ||||||
108<\/td>\n | Table tab_ae Figure fig_A.5 <\/td>\n<\/tr>\n | ||||||
109<\/td>\n | Table tab_A.11 <\/td>\n<\/tr>\n | ||||||
110<\/td>\n | Annex sec_A.16.6 Table tab_A.12 Table tab_A.13 <\/td>\n<\/tr>\n | ||||||
111<\/td>\n | Table tab_ag Figure fig_A.6 Table tab_A.14 Table tab_A.15 <\/td>\n<\/tr>\n | ||||||
112<\/td>\n | Annex sec_A.16.7 Table tab_A.16 Table tab_ah Figure fig_A.7 <\/td>\n<\/tr>\n | ||||||
113<\/td>\n | Table tab_A.17 Table tab_A.18 Annex sec_A.16.8 Table tab_A.19 <\/td>\n<\/tr>\n | ||||||
114<\/td>\n | Annex sec_B Annex sec_B.1 Annex\u00a0B \n(informative)<\/p>\n Mathematical models for liquid heating collectors <\/td>\n<\/tr>\n | ||||||
115<\/td>\n | Annex sec_B.2 <\/td>\n<\/tr>\n | ||||||
116<\/td>\n | Table tab_aj Figure fig_B.1 <\/td>\n<\/tr>\n | ||||||
118<\/td>\n | Annex sec_C Annex sec_C.1 Annex sec_C.2 Annex\u00a0C \n(normative)<\/p>\n Properties of water <\/td>\n<\/tr>\n | ||||||
119<\/td>\n | Annex sec_C.3 Annex sec_C.4 <\/td>\n<\/tr>\n | ||||||
121<\/td>\n | Annex sec_D Annex sec_D.1 Annex sec_D.2 Annex\u00a0D \n(informative)<\/p>\n General guidelines for the assessment of uncertainty in solar collector efficiency testing <\/td>\n<\/tr>\n | ||||||
123<\/td>\n | Annex sec_D.3 <\/td>\n<\/tr>\n | ||||||
125<\/td>\n | Annex sec_E Table tab_am Figure fig_E.1 Annex\u00a0E \n(informative)<\/p>\n Measurement of the velocity weighted mean temperature <\/td>\n<\/tr>\n | ||||||
126<\/td>\n | Table tab_an Figure fig_E.2 <\/td>\n<\/tr>\n | ||||||
127<\/td>\n | Reference ref_1 Reference ref_2 Reference ref_3 Reference ref_4 Reference ref_5 Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Solar energy. Solar thermal collectors. Test methods<\/b><\/p>\n |