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API SPEC 14L: Lock Mandrels and Landing Nipples : Reaffirmed

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273

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169

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API TR 5NCL Nickel Content Limits for API 5CT Sour Service Products

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149

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189

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218

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API SPEC 16A: Specification for Drill-through Equipment

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API RP 13B-2: Field Testing Oil-based Drilling Fluids wA1

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ISO 14490:2021

ISO 14490:2021 Optics and photonics – Test methods for telescopic systems – Part 3: Test methods for telescopic sights

CDN $173.00

SKU: d1632de74c2c Category:

Description

This document specifies test equipment and test procedures for determination of the following optical characteristics of telescopic sights:

– axial parallax;

– parallax;

– eye relief range, eye relief, critical eye relief;

– reticle tracking;

– line of sight shift due to zooming;

– line of sight shift due to focusing.

Edition

3

Published Date

2021-03-23

Status

PUBLISHED

Pages

16

Language Detail Icon

English

Format Secure Icon

Secure PDF

Abstract

This document specifies test equipment and test procedures for determination of the following optical characteristics of telescopic sights:

- axial parallax;

- parallax;

- eye relief range, eye relief, critical eye relief;

- reticle tracking;

- line of sight shift due to zooming;

- line of sight shift due to focusing.

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